LiCl doping modulated PbS hole-transport layer for high-efficiency Sb2(S,Se)3 solar cells. - Zhang, Jun-Cai; Zhang, Jing-Dong; Liu, Ling-Jie; Huang, Jie; Cai, Jin-Rui; Li, Hu; Lin, Li-Mei; Chen, Gui-Lin (Applied Physics Letters, 2026)